Hose-pipe connection.



m. 7|s,n7. Patented' Nov. u, 1902.

. as. LEE.

HosE PIPE coNnEcnoN'.

v I v (Application filed Au'g. .10, 1901.) (nu Model.)

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UNTTED STATES PATENT OEEICE.KV

GEORGE S. LEE, OE HAWTHORNE, NEW JERSEY.

HOSE-PIPE CONNECTION.

SPECIFICATION forming part of Letters Patent No. 713,117, dated November11, 1902.

I Application filed August 10, 1901. Serial No. 71,583. (No model.) y

Vpipe and by which the pipe may be connected to some other device, suchas a stand-pipe or a nozzle, dto.

The objects of my invention are to cause the connection to hold morefirmly to the hose than the devices for the same purpose heretofore usedand to render the device simple and composed of few parts and theseparts of such character that they may be made readily.

My invention consists of a nipple which has the function of expandingthe end of the hose to which itis applied, a socket or sleeve fittingover the expanded end of the hose, and a compression-ring for forcingthe socket or sleeve against the hose end. Means are also providedbetween the several parts to draw them together. For conveniencethis'means may consist of engaging screw-threads on the several parts.

I will describe a hose-pipe connection embodying my invention and willthen point out the novel features in claims.

In the accompanying drawings, Figure lis a central longitudinalsectional view of a hose-pipe connection embodying my invention as wellas a sectional view of a portion of a hose-pipe. Figs. 2, 3, and 4 areeach elevational views of the several parts of the hosepipe connection.

Similarletters of reference designate corresponding parts in all thefigures.

Arepresents a nipple having a tapered portion adapted to enter the endof a iiexible hose or other pipe D and tending to expand same. A I I Bis a socket or shell for receiving the expanded end of the hose-pipe,and O a ring for compressing the socket or shell onto the hose end andthereby clamping the hose end between the socket or shell and theexpandingnipple.

The nipple A is here shown as having a straight borea, the interiordiameter of which is the same as the inner diameter of the hosepipe D.It is provided with two oppositelyinclined or tapered portions d a2, theformerof which forms an expanding cone for expanding the hose, while thelatter forms arentrant portion or groove of less diameter than thegreatest diameter of said expanding-cone, so that the portion ofthe hosewhich is adjacent to this portion a2 will be expanded toa less degreethan the portion of the hose immediately back of it and so will tend tohold the nipplein place in the hose. The nipple A is further providedwith screw-threaded portions cts and a, separated by a portion a5,having facets to receive awrench. The inclined portion a taperssubstantially to a kuife-edgeaat the forward end,so that when the nippleis inserted in the end of the hose itwill not present a shoulderedportion, such as would be liable to retard the flow of fluid through thehose'D and coupling.

The socket or shell B is here shown as having an abutment or flange h,interiorly screw-threaded to engage the screw-thread 0.3 of the nippleand with asocket portion o', which receives the expanded end of the hoseD. The interior of the socket portion h' is inclined or tapered in thesame general direction as the taper or incline a' of the nipple. As hereshown, both surfaces (exterior and interior) are tapered, so that thesocket portion b is in the shape of a hollow truncated cone. Theexterior of the socket portion b is provided with a screw-thread b5, andthe said socket portion has longitudinal slots b2 therein, by which theportions between them form spring-tongues b3, which being opposite thehose expanding portion a are adapted to press the hose againstthe same.Each spring-tongue b3 is here shown as provided with an externalllangebl, and the said flanges are adapted to be engaged by thecompression-ring.

The compression-ring O is provided with an interior screw-thread c,which engages with the screw-thread b5 and with an interior tapering orinclined surface c', which coacts IOO hose.

with the spring-tongues b3. As here shown, the ring is contracted towardits end c2.

In applying the hose-pipe connection the compression-ring C is firstslipped onto the The socket or shell is next tted over the end of thehose-pipe and the expandingnipple inserted in the end of the hose toexpand the end thereof, the nipple being held in the end of the hose byits screw-thread a3 engaging with the interior screw-thread of the angel). The compression ring is then screwed onto the socket or shell, andin so doing its interior taper c compresses the spring portions'onto thehose to firmly clamp the hose between it and the nipple. The compressionof the spring portions is increased by reason of the contracted end c2of the ring working over the flanges b4 of the springtongues b3. l

It will be seen by reference to Fig. l that by reason of theoppositely-inclined or tapered portions of the nipple A the wall of thehose at or near its end will be so compressed as to have a varyingthickness and that therefore when the spring portions are compressedagainst the hose the wall of the hose will be tightly clamped betweenthe inclined surfaces of the nipple and socket or shell. A nozzle orother device may be engaged with the screw-thread a4.

I do not wish to be limited only to the precise form or constructionherein set forth, as

the same may obviously be varied within.

wide limits without departing from the spirit and scope of my invention.

l. In a hose-pipe connection, the combination with a nipple adapted forinsertion into a hose, having a forwardly-tapered hose-expanding portionand having a rentrant portion or groove at the rear of said taperedportion, of a socket fitting over said nipple and having spring-tonguesopposite said tapered hose expanding portion, said nipple and socketbeing provided with means for drawing the socket longitudinally alongthe nipple, whereby the spring-tongues are caused to press the hoseagainst said hose-expanding portion.

2. In a hose-pipe connection, the combination with a nipple adapted forinsertion into a hose, having a hose-expanding portion taperedsubstantially to an edge, and havinga reentrant portion or groove at therear of said tapered portion, of a socket tting over said nipple andhaving spring-tongues opposite said tapered hose-expanding portion, saidnipple and socket being provided with means for drawing the socketlongitudinally along the nipple,whereby the spring-tongues are caused topress the hose against said hose-expanding portion.

3. In a hose-pipe connection, the combination with a nipple adapted forinsertion into a hose, having a forwardly-tapered hose-expanding portionand having a rentrant portion or groove at the rear of said taperedportion, of a socket fitting over said nipple and having spring-tonguesopposite said tapered hose expanding portion, said nipple and socketbeing provided with means for drawing the socket longitudinally alongthe nipple, and a compression device for pressing said tongues againstthe hose.

4. In a hose-pipe connection, the combination With a nipple adapted forinsertion into a hose, having a hose-expanding portion taperedsubstantially to an edge, and having a rentrant portion or groove at therear of said tapered portion, of a socket fitting over said nipple andhaving spring-tongues opposite said tapered hose-expandi ng portion,said nipple and socket being provided With means for drawing the socketlongitudinally along the nipple, and a compression device for pressingsaid tongues against the hose.

5. In a hose-pipe connection, the combnation with a nipple adapted forinsertion into a hose, having a forwardly-tapered hose-expanding portionand having a rentrant portion or groove at the rear of said taperedportion, of a socket fitting over said nipple and having spring-tonguesopposite said tapered hose expanding portion, said nipple and socketbeing provided with means for drawing the socket longitudinally alongthe nipple, and a compression-ring threaded on the socket, butprojecting forwardly beyond the ends of said tongues, and provided atits front end with a contact portion adapted to press upon thespring-tongues and press the same against the hose as saidcompression-ring is screwed backward upon the socket.

GEORGE S. LEE.

Witnesses:

A. J. SANGSTER, W. B. CONGER) ICO

